Bobbin-holder.



e. w. KRETZSCHMAR.

BOBBIN HOLDER, APPucATloNFlLEn rsEPT.25. 191s.

Patented July 10, 1917.'

2 SMEETSwSMEET l.

4&5 612150111113 UNiTED STATES GEORGE W. KRETZSCHMAR,

Specification of Letters Patent.

PATENT OFFICE.

DF PASSAIC. NEW JERSEY.

BOBBN-HOLDER.

Patented July 10, 1917.

4Application filed September 25, 1916. Serial No. 121,944.

To all whom, it may concern.'

Be it known that I. (luenen lV. 'Kinz'rzseii- Man-. a citizen of the United States, and a resident of Passaic, in the county of Pas- 5 saic and State of New Jerseiuliavc invented certain new andiiseful Improvements in Ilobbiii-llolders, ol" which the fi'illowiiig a si'iecification. j

r[his invention relates to improvements .in hobhiii holders'of thc types'used in colinection with warping machines, twisting' frai'iics` yarn reels and other allied mecha- 'i nisnis whereina number of Fine" \arn`s are .to be united into a single strand. Y

The principal object of the invention is' to provide a .forni of hobbiu holder or Hier Another ,is to provide such holders 4 with meansr which resiliently engage with the interior of the cop or bobbiu holding it in position. and further to provide means which are susceptible of holding the 'cops or bohbins inany desired arrangement either in ar .straight horizontal line or disposed ,in curves or angles.

These and other like objects are attained by the novel construction and combination 'of parts hereafter described and shown in f the accompanying drawings, forming a ina.-

terial part of this disclosure. and in which Figure l is a4 vertical 'sectional view showing the holder on its support as applied to i a form of cop tube. -4 Fig. 2V is a. perspective view 'showing the holder in detail.

40 Fig. 3 is e. vertical view taken throng the center of the holder.

Fig. 4 is a transverse sectional view taken on line 4-4 of Fig. 1.

Fig. 5 is a vertical sectional view showing a further modification.

' Fig. 6 is a, similar 1eertical sectional View showing a modified means of engaging Athe holder to its stand.

Fig. 7 is another like sectional View of the saine', and

Fii 8 is e diagrammatic view illustrating t e relative posit-ion of the bobbins to :i set of feed rolls.

In all twisting and spinning machines the spools revolve on spindles mounted on the frames and these spindles .must turneasily capable of long and extended yuse. and which ingly .dillic'ult to produce a uniform thread dile to the unsteady i'nn ofthe spool and the iariation in stretching of the fibers caused by the unequal tension on the saine.

Referringr lnow toV the- .drawings, a fixed rail 10- forms a .portion ot" the supliortmg l'traniLiftlie 'saine licing"eniliraced in a forked' l strength and stillness is attained.

ltigidly set in the upper .portion .of the clciiic'iit il; ab uniform distances apart,' are studs It preferably formed with a flange 15 -iiiiniediiitcly ahove which is Va noch por# t-ion '16, the lower-hearing 17 extending thercahovc. and a straight cylindrical stein element IS extends to the upper hearing 19 the stein lthcing'- of reduced diameter so' as to decrease. thefrictional resistance of the.'

tubular sleeve 20 which envelope` it. llorm'cd with the sleeve is a.v flange 2l havin;r :i diameter slightly greater than that of the cop orspool to he place-don the dcvice: formed with the openingtlirough the flange are' lips 22 adaptedto be spun 1 n- Wardly toward' a common center and engage with the neck 1G so as to prevent the sleeve from' rising. -At the upper end of -the sleei`e. is :in integri-al head formed so as to exert a uniform pressure in all di' reetions within the 'hollow' sleeve, cop or spool 30 upon which the. sliver or yarn 31 is Wound. l

The lower ends ofthe spring elements pass thi-(nigh appropriate openings 33,

formed with the liangre element 21, preventing the same from displacement at their lower ends und also increasing the resiliency of the wires.

Theeonstruction of the foregoing parts is clearly evident from inspection of Figs. 1 and 2 of the drawings; this arrangement is preferred where relatively strong, heavy material is wound upon the cops as lltlie use oi? the set screw friction may be l'nodnced :is desired `tending to overcome too free rotative action of' the cop.

In F ig. 3 an annular recess 35 is formed in the stein 1S, the sleeve 2O being provided with a raised boss i6 adapted to contain a screv,r 37, the cylindrical point 3S of which enters the recess thereby holding the sleeve against longitmlinnl motion relative to the stern 18 in either direction.

In the adaptation shown in Fig. 5 a pin fO is rigidly inserted in the head acting in a manner similar to that of the screw 25.- 'A similar butreversed arrangement is in-, dicated in Fig. 6 in which a set screw 42 is provided, formed `{vith an inverted conical point adapted to receive the cone 18 formed above the bearing 19 of the stein 1S.

'In Fig. 7 is shown a variation consisting of a solid head 23'forined with the sleeve 20 containing the spindle 18 with its bearings 17 and 19 respectively, the sleeve being maintained in operative position on the stein by reason of an annular slot being formed therein, and the metal of the sleeve rolled or spun, as at 46 so as to engage within the annular recess 45 as will clearly be evident. F ig. 8 shows an arrangement of spools disposed in an are of a circle and in such manner that the yarn is drawn to a central point therefrom passing through rolls wherel the several fibers are united into a single strand and thence to a spinning frame or cylinder.

` These arrangements permit of extremely `fragile yarns to be withdrawn from the spools with the least danger of breakage'posi sible.

In operation the cop, tube or spool having been filled with the fibers in the form of a thin yarn or sliver, it is placed over the several springs 28 the same being extended outwardly tending to hold the spool in a relatively rigid manner, the lower end of the'spool being formed squarely across and adapted to rest upon the flange 21 wheeby it is measurably prevented from lateral movement in any direction and caused to rotate upon vthe central axial plane of the stem.

the use of oil is unnecessary or used in the most limited quantity, and that the parts are so 4constructed that should oil-be used, it'is prevented from making contact with From the foregoing it willl be evident that I the yarn or threads u'pon the cops, and the arrangement is such that the cops may be held at an angle of as much as 45 degrees in either direction thereby permitting the cops to be unwound perpendicular to their rotation, the arrangement being such that the frame is less crowded than usual-and the whole structure lowered, thus increasing the efliciency of the employee.

Having thus described my invention what.

I claim as new and desire to secure by Letters Patent, is :-A

1. In a cop support,` the combination with I a frame, a plurality of hardened spindles secured to said frame, sleeves mounted on said spindles, means for holding said sleeves engaged therewith, a flange formed at the base of said sleeves upon which the cop may` rest, an integrally formed "annular head, the periphery of which extends beyond the body of said sleeve, a plurality of arcuately bent resilient wires attached at both endsof said sleeves adapted to 'engage within the cop, and means for tensionallyi adjusting the frictional resistance between said'sleevesand said s indles.

2. 1p hardened splndle having bearing surfaces'at opposite ends, a sleeve 'Surrounding said' spindle, means for en said sleeve toI said spindle, an annulr ng tegral with said sleeve adapted to support a cop, a solid enlarged head formed -wlth said sleeve and 'a plurality of resilient ,curved wires attached to said head lower ends:

passing freely throu h ope 1; formed in said flange, said resilIent w ed to tenslonally of the co Signe at Passaic, in the county of Passaic and-State of New Jersey, this 15 day of September, 1916.

GEO. w.' KRErascms.

n a oop holder, the combination 4with-af flange :formed in# adapt-1.,' engage mth the interiori 

